The Southco Electronic Key System provides an efficient solution for key management issues. User-friendly and easily programmable, the self-contained system allows different access privileges across a large number of enclosures and is ideal for battery operated systems and applications with many users. A key fob, information reader and validation controller all work together seamlessly with Southco electromechanical locks. Users can program, add and delete keys with the simple press of a button and are ensured security with 280 trillion possible key codes.